Wildfires broke out on the Greek island of Rhodes after a prolonged stretch of extreme heat.
Actively burning fires are marked by a red infrared signature in this image captured by #Landsat 8 on July 19. go.nasa.gov/3Q8xwF2
#NASAEarth
Fires Ignite on Greek Islands
Wildfires broke out on Rhodes and other islands amid record heat, forcing thousands to evacuate.go.nasa.gov
NASA, DARPA Experts to Discuss Nuclear Rocket Program Developments
Experts from NASA and the Defense Advanced Research Projects Agency (DARPA) will hold a media teleconference at 1 p.m.Abbey Donaldson (NASA)
APOD: 2023 July 26 – IC 4628: The Prawn Nebula
A different astronomy and space science related image is featured each day, along with a brief explanation.apod.nasa.gov
#NASASolarSystem
After three quiet years, the Shishaldin volcano in Alaska’s Aleutian Islands erupted this month. 🌋
Ash fallout from the eruptions can be seen on the southern flanks of the volcano in this image captured by #Landsat 8 on July 17, 2023. go.nasa.gov/3DwFIaF
#NASAEarth
Shishaldin Erupts
Ash from recent eruptions blackened the snow-covered flanks of the Alaskan volcano.go.nasa.gov
These bold explorers (or, not so bold, no judgment) will go where humans can't to explore real exoplanets. Check them out and take our quiz to see which Exoplaneteer YOU are: exoplanets.nasa.gov/exoplanete…
#NASAExoplanets
The Exoplaneteers | Explore – Exoplanet Exploration: Planets Beyond our Solar System
Four brave explorers, the Captain, the Brain, the Scout, and the Friend, find themselves flung onto different exoplanets. Separated by space, the Exoplaneteers search for signs of life, or friends, while facing the dangers of these strange worlds.Exoplanet Exploration: Planets Beyond our Solar System
#NASAExoplanets
Webb Detects Water Vapor in Rocky Planet-Forming Zone
New measurements by NASA’s James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) have detected water vapor in the system’s inner disk, at distances of less than 100 million miles (160 million kilometers) from the star – the region where rocky, …Jamie Adkins (NASA)
About 2,000 galaxies make up the Virgo cluster. This #HubbleClassic focuses on one of its members, NGC 4660!
At 54 million light-years away, this galaxy is home to 205 globular clusters, which are spherical groups of stars bound together by gravity: go.nasa.gov/476ZwPe
#Hubble
Look at this big chunky weirdo. 🪨 I love it.
I spotted this boulder from a distance and have come in for a closer look. It’s harder than most, with an odd shape and makeup. #SamplingMars could be a challenge here, but I’m up for it!
#PerseveranceRover
Last stop! It’s time to visit one of the U.S. National Parks. 🥾🌲
Which would you rather check off your bucket list– Bryce Canyon National Park (left) or Acadia National Park (right)?
#NASAEarth
#ISS
Safety Training, Space Botany, Robotics Practice and Spacesuit Maintenance Today
The seven-member Expedition 69 crew is keeping busy Tuesday with a round of training, prepping for an upcoming cargo delivery and tending to plants aboard the International Space Station.blogs.nasa.gov
Phew, that was a tough but beautiful hike! Let’s cool off in a lake. 🏊
Which would you rather dive into – this trio of lakes in Ethiopia (left) or China’s Poyang Lake (right)?
#NASAEarth
The two Ethiopian lakes on the left are alkaline lakes and infested with schistosomiasis, so I'll pass. Lake Langano is on the right is free of the parasite and is a popular tourist destination.
Poyang Lake has just entered it's earliest dry season on record (records began in 1951). Doesn't look inviting.
Grab your sunscreen and hiking boots! It’s time for a short hike through the desert. 🏜️
Which do you want to explore– the Rub’ al-Khali in the Arabian Peninsula (left) or Africa’s Namib Desert along the Kuiseb River (right)?
#NASAEarth
LIVE: We're talking with the members of #Crew7 and astronaut Loral O'Hara as they get ready to live and work on the @Space_Station. Send them your questions with #AskNASA: twitter.com/i/broadcasts/1OwxW…
[Video embedded in original tweet]
#NASA
.@nasa and @northropgrumman are targeting Tuesday, August 1 for the launch of the company's 19th commercial resupply mission to the station.
Live coverage will begin on NASA TV at 8pm ET. nasa.gov/press-release/nasa-se…
#ISS
NASA Sets Coverage for Cargo Launch to International Space Station
NASA and commercial cargo provider Northrop Grumman are targeting 8:31 p.m. EDT, Tuesday, Aug. 1, for the launch of the company’s 19th resupply mission to the International Space Station from the agency’s Wallops Flight Facility in Virginia.Claire O’Shea (NASA)
We’re working with the aviation industry to make hybrid electric propulsion a reality. Today with GE Aerospace and magniX, we’re unveiling new paint schemes for two new aircraft in development with @NASAAero.
AvGeek out on the details of our Electrified Powertrain Flight…
#NASA
LIVE: Tune in as NASA, @ESA, and @JAXA_EN leaders discuss the science and objectives of the upcoming #Crew7 launch to the @Space_Station. twitter.com/i/broadcasts/1YqKD…
[Video embedded in original tweet]
#NASA
NASA Sets Coverage for Cargo Launch to International Space Station
NASA and commercial cargo provider Northrop Grumman are targeting 8:31 p.m. EDT, Tuesday, Aug. 1, for the launch of the company’s 19th resupply mission to the International Space Station from the agency’s Wallops Flight Facility in Virginia.Claire O’Shea (NASA)
The first Landsat satellite was launched 51 years ago on July 23, 1972. It was built on the same platform as another satellite from its time, giving them a similar appearance. For #TriviaTuesday, tell us which one!
A) Nimbus 4
B) Intelsat IV
C) Uhuru
D) GOES 1
#NASAhistory
NASA Partners with American Companies on Key Moon, Exploration Tech
NASA has selected 11 U.S. companies to develop technologies that could support long-term exploration on the Moon and in space for the benefit of all.Abbey Donaldson (NASA)
The first Landsat satellite was launched 51 years ago on July 23, 1973. It was built on the same platform as another satellite from its time, giving them a similar appearance. For #TriviaTuesday, tell us which one!
A) Nimbus 4
B) Intelsat IV
C) Uhuru
D) GOES 1
#NASAhistory
APOD: 2023 July 25 – The Eagle Nebula with Xray Hot Stars
A different astronomy and space science related image is featured each day, along with a brief explanation.apod.nasa.gov
The Eagle Nebula with X-ray Hot Stars
Image Credit: X-ray: Chandra: NASA/CXC/SAO, XMM: ESA/XMM-Newton; IR: JWST: NASA/ESA/CSA/STScI, Spitzer: NASA/JPL/CalTech; Visible: Hubble: NASA/ESA/STScI, ESO; Image Processing: L. Frattare, J. Major, N. Wolk, and K. Arcand
apod.nasa.gov/apod/ap230725.ht… #APOD
APOD: 2023 July 25 – The Eagle Nebula with Xray Hot Stars
A different astronomy and space science related image is featured each day, along with a brief explanation.apod.nasa.gov
Plants and vegetation are abundant along Baugh Creek in Idaho, thanks to the ponded water from beaver dams! 🦫
A @nasa-supported effort is using @nasa satellite data to predict which streams can support beavers and monitor changes once they return. go.nasa.gov/3Y5eRf8
#NASAEarth
Idaho’s Emerald Refuge
Plants are abundant along Baugh Creek, thanks to the ponded water from beaver dams.go.nasa.gov
#NASASolarSystem
Now, Landsat Next is on the horizon 🌅
With a trio of smaller satellites that can each detect 26 wavelengths of light and thermal energy,
@nasa/@USGS #Landsat Next will provide finer resolution and more frequent data to monitor Earth’s changing surface. go.nasa.gov/3va23GU
[Video embedded in original tweet]
#NASAEarth
Next up to Continue NASA/USGS’s Landsat Legacy
With a trio of smaller satellites that can each detect 26 wavelengths of light and thermal energy, the Landsat Next mission is expected to look very different from its predecessors that have been observing Earth for 50 years.Kate Ramsayer (NASA)
Together, OLI and TIRS study all parts of Earth’s surface every 16 days.
From land to ice to sea, the open data provided by the #Landsat program has contributed to a deeper understanding of our changing planet. #OpenScience
#NASAEarth
The @NASAKennedy launch team recently completed the first of many mission simulations for #Artemis II, the first crewed Artemis mission.
Simulations help ensure that both team members and their software are prepared and up-to-date for a safe launch: go.nasa.gov/3Q8PQxK
#NASAArtemis #Artemis
NASA Completes First Launch Simulation for Artemis II Moon Mission
NASA’s Artemis launch team conducted its first simulation for Artemis II, the first crewed mission under Artemis, on July 20 inside the Launch Control Center at the agency’s Kennedy Space Center in Florida.James Cawley (NASA)
go.nasa.gov/3KaVlbo
#NASA
Webb Detects Water Vapor in Rocky Planet-Forming Zone
New measurements by NASA’s James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) have detected water vapor in the system’s inner disk, at distances of less than 100 million miles (160 million kilometers) from the star – the region where rocky, …Jamie Adkins (NASA)
We may be witnessing the aftermath of catastrophic climate change in that region.
#Landsat 8 and 9 also measure land surface temperature with Thermal Infrared Sensor (TIRS) and TIRS-2. These data are crucial for water management and ice detection.
#DYK that TIRS almost didn’t exist? Now it’s been imaging Earth for over a decade! go.nasa.gov/3OSCDbH
#NASAEarth
Ten Years of TIRS: Data for a Thirsty World | Landsat Science
Landsat 8 very nearly flew without a thermal infrared sensor. This is the backstory of how TIRS made it onto Landsat 8.https://landsat.gsfc.nasa.gov/article/author/lrocchio/#author (Landsat Science)
Both Landsat 8 and 9 have optical sensors that collect beautiful images of Earth. 😍 🌏
Called the Operational Land Imager (OLI) and OLI-2, these sensors take measurements in the visible, near infrared, and shortwave infrared portions of the electromagnetic spectrum.
#NASAEarth
51 years of eyes on Earth 👀🛰
Since 1972, the #Landsat program has been studying Earth’s land, water, ice and more.
There are currently three active @nasa @usgs Landsat satellites orbiting Earth — Landsat 7, 8, and 9 — with Landsat Next on the horizon. go.nasa.gov/3Nxxl4w
#NASAEarth
Landsat Science
This joint NASA/USGS program provides the longest continuous space-based record of Earth’s land in existence.Landsat Science
#ISS
Space Biology, Human Health Research and Robotics Work to Kick off Week
The Expedition 69 crew aboard the International Space Station is keeping busy on Monday with Genes in Space operations, human health research, robotics work, and station maintenance.blogs.nasa.gov
When @NASAWebb looked at a developing planetary system, it detected water vapor in the building materials, in the region where rocky planets like Earth may be forming: go.nasa.gov/3O5LR2j
#NASAExoplanets
Webb Detects Water Vapor in Rocky Planet-Forming Zone
New measurements by NASA’s James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) have detected water vapor in the system’s inner disk, at distances of less than 100 million miles (160 million kilometers) from the star – the region where rocky, …Jamie Adkins (NASA)
#JamesWebb
On our world, water is life. But how did it get here? Are there similar environments around other stars?
Webb has us one step closer to answers. In a still-developing “solar system,” Webb detected water in the zone where rocky planets like Earth may form: go.nasa.gov/3O5LR2j
#JamesWebb
Webb Detects Water Vapor in Rocky Planet-Forming Zone
New measurements by NASA’s James Webb Space Telescope’s MIRI (Mid-Infrared Instrument) have detected water vapor in the system’s inner disk, at distances of less than 100 million miles (160 million kilometers) from the star – the region where rocky, …Jamie Adkins (NASA)
Join us in celebrating @NASAInterns! Ahead of #NationalInternDay, July 27, hear from current and former interns, and discover the work they do.
Interested in interning with us, or know someone who might? Spring internship applications are due Aug. 31: go.nasa.gov/44WNcPJ
#NASA
Zenbleed: an AMD Zen 2 speculative vulnerability
Tavis Ormandy reports on a vulnerability that he has found in "all Zen 2 class processors" from AMD. (Wayback Machine link as the original site is overloaded.lwn.net
Rai Aren 🖖✨📚🇺🇦
in reply to NASA • • •